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FUEL INJECTOR (for Port Injection): Inspection

  1. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Check Measure the resistance of the injector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1-2 20°C (68°F) 11.6 to 12.4 Ω
      Fig 1: Identifying Fuel Injector Connector
      G04947878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the resistance is not as specified, replace the injector.

      1. Inspect the injection volume.
        CAUTION: This test involves high-pressure fuel and electricity. Take all precautions regarding safe handling of both the fuel and the electricity. Perform this test in a safe area, and avoid any sparks or flames. Do not smoke.
      2. Remove the fuel pipe clamp.
        Fig 2: Locating Fuel Tube Connector (Quick Type A)
        G04947837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Disconnect the fuel tube.
        Fig 3: Disconnecting Fuel Tube
        G05854001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Connect SST to the fuel pipe (the vehicle side).
      5. Install the O-ring to the fuel injector.
        Fig 4: Identifying Fuel Injector And O-Ring
        G05854002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      6. Install SST and tube to the fuel injector.

        SST 09268-31012 (09268-41500, 90467-13001, 95336-08070, 09268-41300, 09268-41600) 

        Fig 5: Identifying SST Installation Position And Tube To Fuel Injector
        G04947882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      7. Put the injector into a graduated cylinder.
        CAUTION: Install a strong rubber tube onto the injector to prevent gasoline from splashing.
      8. Operate the fuel pump (turn the engine switch on (IG)).
      9. Connect SST (wire) to the injector and the battery for 15 seconds, and measure the injection volume with the graduated cylinder. Test each injector 2 or 3 times.
        Fig 6: Connecting SST (Wire) To Injector And Battery
        G04947883Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        SST 09842-30090 

        Standard injection volume: 

        84 to 102 cm 3  (5.1 to 6.2 cu in.) per 15 seconds 

        Difference between each injector: 18 cm 3  (1.1 cu in.) or less 

        If the injection volume is not as specified, replace the injector.

    3. Check for leakage.
      1. In the condition above, disconnect the tester probes of SST (wire) from the battery and check for fuel leakage from the injector.

        Standard fuel drop: 

        1 drop or less in 20 minutes 

        Fig 7: Checking Leakage
        G04947884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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